与实际电压源并联的元件称为多余元件或虚元件。（）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='32628' and id < 2594601 and id<>'2594601' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32628' and id > 2594601 and id<>'2594601' order by id asc limit 5